Door and gate spring



(No Model.) 1

J. BROUGHTON.

DOOR AND GATE SPRING.

Patented Sept. 9

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UNITED STATES PATENT Grinch.

JOHN BROUGHTON, OF BROOKLYN, NEWV YORK, ASSIGNDR TO DANIEL H.

FITZGERALD, OF READING, PENNSYLVANIA.

DOOR AND GATE SPRING.

SPECIFICATION forming part of Letters Patent No. 304,778, datedSeptember 9, 1884.

Application filed June 8, 1881. (No model.)

lb'aZZ whom it may concern.-

Be it known that I, JOHN BROUGHTON, of Brooklyn, in the county of Kingsand State of New York, have invented a certain new and usefulImprovement in Door and Gate Springs,

of which the following is a specification.

My invention relates to an arrangement of torsional door-springs inwhich the spring is attached at both ends to the door or to-the 1o jamb,so as to be approximately parallel with the edge of the door, and has atone end an arm which is connected by a link with the door or jamb,according as the spring is attached to the jamb or door. This arrange- 1ment is very desirable, both because it is more sightly than a springextending diagonally across the opening between a door and its jamb, andalso because where the spring is applied as first described it makes nodifference whether the hinge-pivots of the door are offset more or lessfrom the-face of the door.

The inventionconsists in certain novel details in the construction andarrangement of the arm which is attached to the spring, and 'the plateswhereby the spring is attached to the door, as fully hereinafterexplained.

In the accompanying drawings, Figure 1 represents portions of a door andjamb and a spring applied thereto according to my invention, certainparts being broken away to reduce the length; and Fig. 2 represents ahorizontal section upon the dotted line a: m, Fig. 1.

Similar letters of reference designate corresponding parts in both thefigures.-

A and B designate, respectively, a portion is provided with an arm, F,projecting trans 5o versely therefrom and secured thereto, so that itcannot turn independently.

The top plate, E, is furnished with two lugs, 0, through which thespring is inserted loosely, and the arm F is held between them againstlongitudinal movement, and is locked to the spring by making the holethrough which the spring projects either triangular or square, to suitthe transverse section of the spring.

G designates a plate adapted to be secured to the door whenv the springis on the jamb, and to the jamb when the spring is on the door; and Hdesignates a link, one end of which is pivoted in or to the plate G, andthe other end of which is pivoted to the end of the arm F, as clearlyshown, the said arm forming a connection between the spring and link. i

A spring applied as here shown possesses many advantages over oneapplied in the ordinary way and extending diagonally across from door tojamb. It is much more sightly than as ordinarily applied, and may beused whether the pintles of the hinges are close to the face of thedoor, as here shown, or offset considerably therefrom, while asordinarily applied care must be taken that the pintles are not ofi'setfrom the face of the door. It will also be seen that the spring isturned only about half as much as the door, as shown in dotted outlinein Fig. 2, where it is clearly shown that the turning of the door ninetydegrees, or a quarter of a turn, has only twisted the spring an eighthof a turn. The movement of the spring being therefore only about halfwhat it is where applied in the ordinary way, the force exerted by it ismore nearly uniform;

Though here shown and described as applied to a door, the spring isequally applicable to a gate.

I am aware that it is not new to attach both ends of a torsion-spring toa door or to a jamb, and to connect one end of the spring by an arm andlink with the jamb or door, according as the spring is attached to thedoor on Jamie, and I only desire to cover such a combination when one ofthe plates whereby the spring is attached has a pair of lugs throughwhich the angular end portion of the spring passes loosely, and when thearm which is applied to the spring is arranged between said lugs so asto be held in place thereby in a direction lengthwise of the sprin Thisnovel combination is advantageous, as it affords a very simple andinexpensive means of connecting the spring, its plate, and its arm, andasany one of said parts, in case of breakage, may bevery readilyreplaced by another.

What I claim as my invention, and desire to secure by Letters Patent, is

The combination of the torsion-spring D, having angular formations atthe ends, the plates E E, applied to the ends of the spring, the plate Ebeing constructed with a pair of lugs, c 0, through which the springpasses I5 loosely, the arm F, fitting the angular end portion of thespring, and held between the lugs c c,whereby it is prevented frommoving 1ongitudinally 011 the spring, and the link H, whereby the arm Fmay be connected with a 20 door or jamb,substantially as hereindescribed.

This specification signed this 15th day of July, 1880.

JOHN BROUGHTON.

\Vitnesses:

EREDK. ILiYNEs, ARTHUR O. XVEBi-i.

